ratigan



Nov. 30 1926.

J. P. RATIGAN GRIP Original Filed Feb 16. 1925 lllllililhrl I /M w, Wm mP P. 6 I mm a J TORNEY Reissued Nov. 30, 1926.

UNITED STATES This invention relates to gripping devices and moreespecially to screw clamps of a I type called grips.

While the present grip has a varlety of to what are known in the oilfields, as polish rods for plunger pumps. The grip connects the polishrod to the usual pump beam.

An object of my present inventlon is to provide a grip body with a freeand unobstructed channel along one sideso that the grip body can beslapped quickly and easily against the polish rod immediately followingwhich a complementary gate, carrying a gripping jaw, can be dropped ontoa seatpart in the body, following which setting screws are operated tojam the jaw on the rod.

An object is to provide a grip whose parts are very simple, substantialand comprise but two wholly separable units, which are so constructed,and cooperative that when the channel body has been slipped onto the rodby one hand the other unit or gate canbe dropped into closing positionand will be supported on the grip body (held by one hand) while setscrew means are operated by the other hand to force in the clamp jaw.The advantage of this is that the pump man can drop the gate into placewithout fear of its passing through the channel and does not have tohold the gate itself while he is running in the set screws.

An important object is to provide an open 6 side grip body and a whollyremovable gate ofsuch design, arrangement and construction that theyinterlock in a manner to prevent disastrous spreading of the side wallsunder reaction of clamp pressures.

Another object is to provide a detachable gate carrying an associatedmovable clamping jaw in interconnected relation therewith.

Other objects and advantages will be made apparent in the ensuingspecification of ap- 5 paratus, herewith illustrated, embodying a formof the invention; it being understood that modifications, variations andadaptations may be resorted to within the spirit and scope of theinvention as here claimed.

' Figure 1 is a plan of the grip; the introduced rod being in'section;

' Figure 2 is a front elevation of the applied rip g Fi ure 3 is alongitudinal section of the applied grip (on line 33, Fig. 2)

5 useful purposes it is particularly adaptable PATENT OFFICE..

JAMES P. arman, or LOS ANGELES, CALIFORNIA.

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Original No. 1,562,053, dated November 17, 1925, Serial No. 9,508, filedFebruary 16, 1925. Application to! v reissue filed May 6, 1926. SerialNo. 107,280.

Figure 4 is a section on line 44 Fig. 1; Figure 5 1s a perspective ofthe gate element.

The grip, as illustrated, includes astrucshown as a pump polish rod a.The rod is solidly received along the bottom or valley of'thelongitudinal channel 20 between the rings 7 this channel being slightlywider than the rod.

After the grip body has been laid against the rod a the channel isclosed by a mov-' able gate part 8 which has alongits outer paralleledges a set of half round beads 17 which slip easily down into thecorresponding bights' of inwardly facing lips 16 (Fig. 1) along themouth of the body. At the bottom of lips 16 are stop webs 19 (Fig. 4)joined to the bottom of the body 6. These webs do not project into thechannel and do not obstruct entrance by the rod, and are provided forthe purpose of supporting the gate 8 when this is dropped in and fullyreleased from the hand of the pump man who is applying the grip.

This leaves the hand free for use in turnng in screws 9 and 10 which aremounted in the upper and lower ends of the gate 8; the screw 9 beingshown as having a handle 21 for leverage purposes.

The screws 9 and 10 press against a gripping jaw 11 having an effective,longitudinally grooved face 12 which 'is here shown as longitudinallyconvexed, though not necessarily so. The outer side of the jaw 11 has atongue 13 extending intoa 'slot 14 in the gate and having a suitablecross piece 15 to loosely interconnect the jaw with the gate to preventloss by dislodgement.

To permit the jaw 11 to tip back, if so desired, the inner face 22 ofthe gate 8 is slanted inwardly and downwardly, as shown in Fig. 4.

The top of the body 6 has a latch 23 pivoted at 24 to swing in over thenear corner of the gate 8 and retain itagainst loss. When it is desiredto remove the gate entirely the latch 24 is swung out against 1 a stoppin 25.

After the open grip body has been laid against the polish rod, the gateis dropped down in the guideways in the sidewings 7 and the set screws9- and 10 are then run in to set the jaw against the rod a and clinchthis against the bottom of channel 20. A reversal of this operationreleases the parts for removal from the rod.

sections, one section being channeled and the other section forming awall for the open side of the channel and being movably secured to thefirst mentioned section, a screw threaded through one of the sectionsand projecting into the channel, and cooperating parts between-thesections tending to pull the side walls of the channeled member towardeach other when the screw is tightened.

2. A grip comprising a body formed in sections, one section beingchanneled and the other section forming a: wall for the open side of thechannel and being movably secured to the first mentioned section, a

grooved block loosely mounted in the channel, a screw threaded throughone of the sections and projecting into the channeL' and cooperatingparts between the sections extending to pull the side walls of thechanneled member toward each other when the screw is tightened.

\ 3. A grip comprising a body formed in sections. one section beingchanneledand having hook-shaped jaws and the other section havingprojections engaging the bights of the hook-shaped j awe, and a screwthreaded' through one of the sections and projecting into the channel.

4. A grip comprising a channeled body, a grooved block in the channel,the Wall of the groove being convex longitudinally of the block, meansto force one end of the block toward the wall of the channel, and

.means to force the other end of the block toward the wall of thechannel.

.5. A grip comprising a channeled body, a grooved block in the channel,the wall of the groove being convex longitudinally of the block, andscrews threaded into the body. one screw engaging the block near one endand the other screw engaging the block near its opposite end.

6. A grip comprising a channeled body adapted toreceive a rod, screwsthreaded into the body and projecting into the channel and a blockengaged at its end portionsby the screws and having a face engaging therod only at a portion intermediate of the end portions to equalizepressure of the screws on the block.

7, A grip comprising a body formed in sections, one section beingchanneled to receive a rod, the other section having a longitudinallyextending slot, a block having a tongue inserted in the slot, and meanson one of dthe sections to force the block toward'the r0 8. A gripcomprising a body formed in sections, one section being channeled toreceive a rod, the other section having a longitudinally extending slot,a block having a tongue inserted in the slot, there being a of thesections to force the block toward the rod.

9. A grip comprising a body formed in relatively movable sections, oneof the sections having a channel to receive a rod, the other sectionclosing the open side of the channel, one of the sections having itsinner face extending aslant downwardly and inwardly, a block in thechannel, and means on one of the sections to force the block away fromthe slanting face toward the rod.

10. A grip comprising a body formed in relatively movable sections, oneof the sections having a channel to receive a rod, the other sectionclosing the open side ofthe channel and in sliding engagement withthefirst mentioned section, one of thesections having its inner faceextending aslant downwardly and inwardly, a block in the channel,

and means on one of the sections to force the block away from theslanting face toward the rod.

11. A grip including a channeled body section having its side wallsprovided with inwardly projecting hook-shaped jaws forming bights alongthe side walls, a gate section extending between the side walls andhaving projections to engage in the bights, and adjustable means on oneof the sections to force a rod in the channel toward the other section.1

12. A grip comprising a body section having a rod channel along oneside, a movable gate section for closing the open side of the channel,and adjustable means mounted on one section and operative to force a rodin the channel toward the other section; said means acting in oppositedirections on the sections. I

13. .A grip includinga channeled body section to receive an object to begripped, and a movable gate section, carrying an adjustable grippingdevice, closing the channel in the body and interlocked in the sidewalls thereof to prevent spreading of the side walls when the object iseflt'ectively clamped in the channel by the gripping device.-

14. A grip including a body constructed to entirely surround theinserted object to be clamped and having a channeled side for entranceof said object, and having a gate section loosely fitting in the bodyand interlocking with its channel walls to prevent spreading thereofwhen the grip is set, and an adjustable object clamping part projectinginto the body channel and being ad justable on said section.

15. A-grip including a channeled body for side entrance of an object tobe gripped, and an entrance closing gate having an effective objectclamping part and being readily movable out of the entrance to permitrelative lateral application to said object, and means engaged by thegate for preventing spreading of the side walls of" the channel when thegrip is set on said object and a screw means for effecting a gripping ofthe object in the channel between and by said body and said part;

16. A grip including an open channel body for an object to be gripped, amovable side gate to close the channel after insertion of the object andhaving an object clamping art, manually adjustable means 'forefiectmgthe gripping of the object by said body and said part and means forsupporting the gate in the channel before the grip is set.

17. A grip including an open channel body for an object to be gripped, amovable sidegate to cross connect the channel sides after insertion ofthe object; and having a part to clamp the object, said body havingguideways for edges of the gate, and gate stops in the guideways andmeans for setting said part adjustably against the object.

'18. A grip comprising a channeled body member open along one side fromend to end,

.a gripping block in the channel, a front wall section mounted in andclosing the channel, means for effecting a gripping action of the block,and means for preventing spreading of the side walls of the channel bythe wall section when the block is set.

, 19. ,An open-side grip .body having grooved lips along its open side,and a gate interlocking with the grooved lips to prevent lateral spreadof the body and adjustable gripping means to clamp an interposed ob-'ject by reaction of said gate and grip body. 20. An open-side gripbodyhaving grooved lips along its open side, and a gate interlockingwith the grooved lips and carrying adjustable means to clamp aninterposed body; said lips being connected to the body by cross websforming gate stops. 21. An open-side grip body having grooved lipsconnected to the body by stop webs in the lower ends of the grooves, anda movable gate interlocked with the grooved lips and engageable, whenfree, by the webs,

and a screw actuated gripping block carried by the gate and whereby arod is gripped after the gate rests on the stop webs.

22. In a grip, a body including wall sections forming a rod chamber andmutually interlocking when pressed apart laterallg, one section havingmeans to prevent sprea ing of the engaged portions of the other, and onesection of the body having adjustable clamping means to engage aninterposed rod and effect an interlocking action of the sections; saidclamp means being interposed between and oppositely reacting on thesections to cause their interlock.

v 23. A grip comprisinga channeled bod front ,wall section closing thechannel, ad

justable means to set the block in gripping action, and means forpreventing spreading of the side walls of the channel by said secti onwhen the block. is set.

24. A grip including a body formed in sections, one section beingchanneled and the other forming a wall for the open side of the channel,clamping adjustable means mounted on one section and projecting into thechannel, and cooperating parts between the sections operative to preventspreading of the side walls of the channeled section when the clampingmeans is set, said means acting in opposite directions against saidsections tn cause a relative separating movement thereof and effectinterlock of the parts.

25. A grip including a body formed in sections, one section beingchanneled and the other section being insertable in the channel andhaving an aperture, a block having a part inserted in said aperture, andmeans for pressing the *block against the object, in the channel, to begripped.

26. A grip including a body channeled along one side, a block inthechannel and having a longitudinally extending, grooved, 4 gripping faceopposed to the channel bottom,

a section supported on the side walls of the channel and carrying theblock and being movable to uncover the channel, and means for clampingthe block against the object to be grippe w 27. A grip including a bodymember channeled along one side from end to end and having inwardlyturned lips spaced from the body to form guideways, and her to close thechannel and having beads hooking in said guidewa-ys to interlock withand prevent lateral movement of the side on one of said members,extending into the channel and operative to grip an interposed objectand by reaction effect an interlock of the members.

In testimony whereof I have set my hand.

JAMES P. RATIGAN.

a gate 'mem-- walls of the channel and adjustable means,

